Luis Garcia-Weil

Luis Garcia-Weil
Universidad de Las Palmas de Gran Canaria | ULPGC · Instituto Universitario de Estudios Ambientales y Recursos Naturales

About

45
Publications
2,241
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
684
Citations
Citations since 2016
1 Research Item
202 Citations
2016201720182019202020212022010203040
2016201720182019202020212022010203040
2016201720182019202020212022010203040
2016201720182019202020212022010203040

Publications

Publications (45)
Article
Fractal properties of deep ocean current speed time series, measured at a single-point mooring on the Madeira Abyssal Plain at 1000- and 3000-m depth, are explored over the range between one week and 5 years, by using the detrended fluctuation analysis and multifractal detrended fluctuation analysis methodologies. The detrended fluctuation analysis...
Article
Full-text available
Submarine volcanic eruptions took place at the island El Hierro (Canary Islands) between October 2011 and March 2012. The event produced plumes of discoloured waters due to the discharge of volcanic matter, magmatic gases, and hydrothermal fluids. The expelled materials, which behaved like oceanic tracers, were detected from the site of the volcano...
Poster
Full-text available
The intensity of the event was considered moderately turbid according to the kd490 and bb values. An assessment of 3 atmospheric corrections showed the SeaDAS standard MODIS algorithm to be the most suitable approach. Field data (low Chl-a reported over the advected plume) confirmed the failure of MODIS Chl-a algorithms for discolored waters. The a...
Chapter
The combined use of data collected by multi-spectral radiometers, operating in the visible and infrared spectrum, and altimeter radars, operating in the microwave spectrum, allowed the detailed assessment of oceanic mesoscale dynamics in the Canary Islands area. Island-induced eddies are recurrent oceanographic structures of the region and contribu...
Poster
Full-text available
Del 18 al 29 de octubre de 2010 se llevó a cabo la campaña oceanográfica PROMECA en la parte occidental de la Cuenca Canaria con en el buque oceanográfico García del Cid, figura 1. Uno de los objetivos principales del proyecto se centra en el estudio del sistema de afloramiento noroccidental africano en la región de Cabo Ghir. En dicha región se re...
Article
During the year 2008, using the commercial passenger ship Volcán de Tauce of the Naviera Armas company several months, it was possible to obtain vertical profiles of temperature from expandable bathythermograph probes in eight stations across the Tenerife - La Gomera channel. With these data of temperature we have been estimated vertical sections o...
Article
Full-text available
An oceanographic survey was carried out from 18 to 29 October 2010 in the Canary Basin (PROMECA project). Near Cape Ghir, in the Northwest Africa coastal upwelling, 17 CTD casts were made to obtain continuous records of conductivity and temperature with depth, and to collect waters samples for nutrients analyses. Additionally, free-fall turbulence...
Chapter
1.1. Introducción 1.2. Ventajas y limitaciones de la teledetección oceanográfica 1.3. Desarrollo histórico 1.4. Espectro electromagnético y magnitudes radiométricas básicas 1.4.1. El espectro electromagnético 1.4.2. Parámetros oceanográficos básicos que se miden desde el espacio 1.4.3. Magnitudes radiométricas básicas 1.4.4. Atenuación de la radiac...
Article
The Canary waters area is highly complex from an oceanographic point of view. It has been partially studied and different aspects of its surface dynamics remain unknown for a large rank of spatial and temporal scales. The main purpose of our future work using MetOp data is to advance in the knowledge of the ocean surface dynamics in this region usi...
Article
Eddies generated by the Canary Current south of Canary Islands when the flow passes through the archipelago define a high mesoscale variability of the sea level downstream of the islands. Evidence of zonal propagation of perturbations of sea surface heights was observed by generating longitude-time plots. Hovmoeller diagrams of the altimetric data...
Article
Eddies generated by the Canary Current south of Canary Islands when the flow passes through the archipelago define a high mesoscale variability of the sea level downstream of the islands. Evidence of zonal propagation of perturbations of sea surface heights was observed by generating longitude-time plots. Hovmoeller diagrams of the altimetric data...
Conference Paper
This work reveals that the number and strength of Canary Island mesoscale eddies is higher during the second semester of 1998 year and it is dominated by long lived (>6 months) and big size (>150 km) anticyclonic eddies, propagating westward hundreds of kilometers (>500 km) from the place they were generated. This prevalence of anticyclones could b...
Article
The main purposes of this paper are to identify and evaluate the oceanic mesoscale features that appear in the Atlantic Ocean eastern boundary, 20-40° N, 19-9° W, using ERS-1 (1992-1993) satellite altimeter data. The sea surface height anomalies and the eddy kinetic energy fields are calculated. High energy values, between 0.03 and 0.05 m 2 s -2, a...
Article
Full-text available
En este trabajo se presentan algunos resultados obtenidos del análisis de la variabilidad de la altura de la superficie del mar a partir de las anomalías del nivel del mar proporcionadas por los datos del altímetro a bordo del satélite ERS-2. La finalidad del estudio has sido la determinación de la variación estacional que las estructuras oceanográ...
Conference Paper
The Northwest African Coastal Transition Zone (NACTZ) is a region with a high mesoscale activity characterised by cyclonic and anticyclonic eddies, and filaments associated with the Northwest African upwelling system. This work is focused mainly in the filaments observed in satellite images around Cape Jubi and Cape Bojador. The intensity and persi...
Conference Paper
The Canary archipelago acts as a barrier of about 500 km for the Canary Current, which flows along the north-west coast of Africa boundary, associated with the north-west African upwelling. As a consequence, this region is characterised by a large mesoscale turbulent activity. This paper deals with the effects of the most pronounced topographic fea...
Article
The preliminary results of ocean circulations in the Canary Islands area, obtained through laboratory simulations, were discussed. Large oil tanker spills accidents had demonstrated the particular susceptibility of the coastel environment to oil spills. Numerical models were developed by several authors to simulate the evolution of oil spills in th...
Conference Paper
The transition zone between coastal and oceanic waters corresponding to eastern boundary currents is characterized by high mesoscale variability. Associated with this have been observed recurrent and persistent oceanographic features that appear in certain places. In the Canary Upwelling Region studied in this work it has been observed large cyclon...
Article
The transition zone between coastal and oceanic waters corresponding to eastern boundary currents is characterized by high mesoscale variability. Associated with this have been observed recurrent and persistent oceanographic features that appear in certain places. In the Canary Upwelling Region studied in this work it has been observed large cyclon...
Article
Like all the major upwelling regions, the Canary Current is characterised by intense mesoscale structure in the transition zone between the cool, nutrient-rich waters of the coastal upwelling regime and the warmer, oligotrophic waters of the open ocean. The Canary Island archipelago, which straddles the transition, introduces a second source of var...
Article
Full-text available
En el presente estudio, una serie de pares de imágenes consecutivas del sensor Advance Very High Resolution Radiometer separadas entre si 24 horas son utilizadas con el objetivo de deducir velocidades de flujo superficial en el área del afloramiento del NW de África. El método utilizado es el método de las correlaciones cruzadas bidimensionales ent...
Article
Particle organic carbon flux from the shelf to oceanic waters during upwelling between 19°N and 25°N off Mauritania has been analyzed using coastal zone color scanner (CZCS) imagery. Biomass in the giant filament has been estimated using surface pigment concentration registered by CZCS during time series in December 1983, March 1984, and October 19...
Article
Este trabajo presenta el análisis de los efectos de las irregularidades de la línea de costa y la batimetría de la platafoffi1a costera africana, así como la presencia de las Islas Canarias, sobre la denominada Corriente de Canarias, en la región comprendida entre 24° N y 30° N de latitud y 12° O y 19° O de longitud. Haciendo uso de los resultados...
Article
El objetivo que se plantea en este trabajo es el desarrollo de métodos cuantitativos que permitan extraer información nueva o complementaria deducida de parámetros geofísicos primarios obtenidos de las imágenes de satélite, empleando métodos que utilizan secuencias de imágenes consecutivas, para caracterizar mejor la variabilidad mesoescalar del af...
Article
Full-text available
Se presenta un producto de satélite optimizado para estudios de mesoescala, obtenido como una mejora de la imagen media. El producto optimizado como media que es, no ofrece una visión instantánea del medio, pero sin embargo es adecuado para el estudio en mesoescala de áreas marinas sometidas a condiciones de nubosidad persistente, ya que proporcion...

Network

Cited By